C CoRR+poonceonce+Once

(*
 * Result: Never
 *
 * Test of read-read coherence, that is, whether or not two successive
 * reads from the same variable are ordered.
 *)

{}

P0(int *x)
{
	WRITE_ONCE(*x, 1);
}

P1(int *x)
{
	int r0;
	int r1;

	r0 = READ_ONCE(*x);
	r1 = READ_ONCE(*x);
}

exists (1:r0=1 /\ 1:r1=0)
